Laravel multiple count in 1 Query - php

Question

Im new to this Framework, i dont know how to optimize it using db::raw count and aliases and display it to my blade.php using #foreach
im trying to optimize my code, my goals is to count pallet_conditions and store it to my aliases, i dont want to count it one by one like what i did on this code
this is my code not optimize:
//computing the total rapairable
$repairable_total = DB::table('liip_psrm_items')
->where('psrm_items_id', '=' , $psrm_maintenance->id)
->where('pallet_condition', '=', 1)
->count();
//REPAIRABLE
//computing the total good pallets
$good_total = DB::table('liip_psrm_items')
->where('psrm_items_id', '=' , $psrm_maintenance->id)
->where('pallet_condition', '=', 0)
->count();
//GOOD
this is the code, what i wanted to learn. just to minimize, and use aliases
$result = DB::table('liip_psrm_items')
->select(DB::raw('COUNT(liip_psrm_items.pallet_condition = 0 ) AS condition_1',
'COUNT(liip_psrm_items.pallet_condition = 1 ) AS condition_2'))
->where('psrm_items_id', '=' , $psrm_maintenance->id)
->get();

Answer 1

You can't use single query for two different results, which has totally opposite conditions.
Case 1. You are trying to count the items where pallet_condition = 1;
Case 2. You are trying to count the items where pallet_condition = 0;
Now you want to merge these two cases into single query, which is impossible...
So, For these two cases, you have to use either separate queries ( what you did already )
or you can use single query to grab all the items and then use PHP to separate them.
Like:
$total_items = DB::table('liip_psrm_items')
->where('psrm_items_id', '=' , $psrm_maintenance->id)
->get();
$repairable_count = count(array_filter($total_items, function($item){
return (bool)$item->pallet_condition;
}));
$good_count = count(array_filter($total_items, function($item){
return !(bool)$item->pallet_condition; //just inverse of the above condition
}));
i hope this might help.

Answer 2

To count at multiple condition I used this approach
$lastMonthInvoices = Invoice::select(DB::raw("(COUNT(*)) as count"), DB::raw('SUM(total) as total'),'status')
->whereDate('created_at', '>', Carbon::now()->subMonth())
->groupBy('status')
->get();
i got the result with groupBy Status and in each group total number of records as count & also their sum as total
these two snaps are of one query result

Answer 3

You can, first group by, then get count
Like :
DB::table('liip_psrm_items')
->groupBy('pallet_condition')
->select('pallet_condition', DB::raw('count(*) as total'))
->get();

Answer 4

Try to pass a closure like so:
$results = DB::table('liip_psrm_items')
->where('psrm_items_id', '=' , $psrm_maintenance->id)
->where(function($query){
$query->where('pallet_condition', 1)
->orWhere('pallet_condition', 0);
})->count();